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Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007-03-22 to 2007-04-02
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
ASTM E537-86
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
< 253 K
Atm. press.:
101.3 kPa
Remarks on result:
other: The test substance does not undergo any phase transition during the cooling/heating cycle
Key result
Melting / freezing pt.:
< -20 °C
Atm. press.:
101.3 kPa
Remarks on result:
other: The test substance does not undergo any phase transition during the cooling/heating cycle
Conclusions:
A melting point value of lower than 253K (-20°C) at 1013 hPa was determined for the substance in a reliable study conducted according to OECD Guideline 102, and in compliance with GLP.

Description of key information

Melting point/freezing point: <253 K (<-20°C) at 1013 hPa (OECD 102)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-20 °C

Additional information

A freezing point value of <253K (<-20°C at 1013 hPa) was determined for the submission substance using a differential scanning calorimetry (DSC) method in accordance with OECD Test Guideline 102 and in compliance with GLP. The result is considered to be reliable and is selected as key study.

In available secondary sources to which reliability could not be assigned, freezing point values of <0°C and <-70°C were reported for the substance.